PIP decision received

PIP decision for my partner is a low rate award only for daily living total 8 points; 2 each saying you need aid or appliance to prepare or cook food, , to wash / bathe to manage toilet needs and to dress or undress .
There are 4 points the mobility part against 200 metres descriptor
My decision section states ....
... You said you have difficulties taking nutrition , managing therapy or monitoring health condition ,communicating verbally, reading and understanding signs and symbols and words , engaging with other people and making budgeting decisions . I decided you can eat and drink unaided either manage medication or therapy or monitor your health condition unaided or you do no not need to , express and understand verbal info unaided ,read and understand basic and complex info either unaided or using glasses or contact lenses ,engage with other people unaided and make complex budgeting decisions unaided.
You said you have difficulties planning and following journeys I decided you can plan and follow the route of a journey unaided ......
You demonstrated normal behaviour cognitive function concentration memory and intellect you engaged well with assessor adequate eye contact no evidence of anxiety observed. You confirmed you do need a vision test as you have no vision issues. You have problems with back movement bending slow walking gait and slightly reduced limb function and power .........
The HP asked questions about medical conditions including Trigeminal neuralgia , it was explained that on focussing or concentration or factors like noise a severe pain starting from left eye can be triggered in the trigeminal nerve it then spreads to left side of head. When HP offered a test it was pointed out to them that vision tests results are already available in ophthalmologist reports done every 3 months to follow up glaucoma suspicion and to follow up a severe dry eyes syndrome .It was in this context it was pointed out HP that the issue is not eye sight but doing an eye test results in pain . HP checked and confirmed the report is there . But it seems contents of GP / consultants reports has not been properly understood as to how trigeminal neuralgia affects ability to read and plan ,( notwithstanding almost normal eyesight prescription from optician). Pain once triggered can lead to confusion , disorientation , anxiety and stress . An advice from hospital was also shown to the HP that the patient must always carry with them the hospital file containing their heart disease tests reports and details for an emergency . It was explained to HP that the patient would never undertake a journey without another person for fear , anxiety and stress of probability of a cardiac event . The GP letter states that the patient suffers from a lot of anxiety and fears they may be having a heart attack . But the decision has disregarded GP notes. It refers to no anxiety at the time of consultation which seems out of context. It does not seem to visualise the actual situation in traffic noise , flashing lights and other unforeseen nuisances that can trigger Trigeminal nerve pain from the eye spreading to one side of head and added real situation stress caused by many health conditions . When asked why you need someone to be with you on a journey my partner only replied I get disorientated perhaps could not explain in detail but if all medical reports regarding anxiety , stress and concentration issue taken into account a mobility award could be awarded for points added under descriptor 11.
My partner has only a couple of days left counting from 14 December. Though it seems based solely on musculoskeletal examination my partner does not want to take the risk to loose the low rate award it is something for them to cherish for the next 2 years .
Please help . Thanks

Thanks Gordon . Because my partner does not undertake any journey without another person and believes it is dangerously unmanageable on their own to do so using public transport for example to go to hospital therefore they can not make out why the decision says ,

"I decided you can plan and follow the route of a journey unaided ......"

My partner does not like to look fussy- rather to my surprise ,over stated ability on some occasions . However emphasised during consultation that they can not undertake a journey without another person . So would like to challenge this element of decision; feeling it is so incorrect and worried that it may potentially make it unsafe for them if supporting persons are misled by this assessment . My partner is not sure what happens on a request only to look again on one issue from letters GP / consultants that note difficulties of concentrating/focus ( pain noticed when the patient puts glasses on) and GP letter that noise and stress tend to trigger trigeminal neuralgia pain and cardiologist notes there is stress and anxiety that often cause panic attacks as well underlying heart disease.
My partner wonders if it is worth while / good enough case for points to be added on this count (Q 13) result in mobility award as well. My partner would like to challenge this element.